added few codes about MaterialInstance

CMSceneGraph

@@ -1 +1 @@
-Subproject commit 8fd176b8fa8ca605a4b80e766c06c48ce5b1aa85
+Subproject commit bd4984ee4272d358967b15cd6179249bba60f882

inc/hgl/shadergen/MaterialCreateInfo.h

@@ -21,6 +21,7 @@ protected:
 
     AnsiString mi_codes;                                    ///<MaterialInstance代码
     uint32_t mi_length;                                     ///<MaterialInstance数据长度
+    uint32_t mi_shader_stage;                               ///<MaterialInstance着色器阶段
 
     ShaderCreateInfoMap shader_map;                         ///<着色器列表
 

src/ShaderGen/MaterialCreateInfo.cpp

@@ -16,6 +16,7 @@ MaterialCreateInfo::MaterialCreateInfo(const MaterialConfig *mc)
     if(hasFragment  ())shader_map.Add(frag=new ShaderCreateInfoFragment(&mdi));else frag=nullptr;
 
     mi_length=0;
+    mi_shader_stage=0;
 }
 
 bool MaterialCreateInfo::AddStruct(const AnsiString &struct_name,const AnsiString &codes)
@@ -159,6 +160,8 @@ bool MaterialCreateInfo::SetMaterialInstance(const AnsiString &mi_glsl_codes,con
 
     vert->AddMaterialInstanceID();           //增加一个材质实例ID
 
+    mi_shader_stage=shader_stage;
+
     return(true);
 }
 
@@ -176,6 +179,13 @@ bool MaterialCreateInfo::CreateShader()
         if(!shader_map.GetValue(i,sc))
             return(false);
 
+        if(mi_shader_stage)
+            if(sc->GetShaderStage()<mi_shader_stage)
+            {
+                sc->AddOutput(VAT_UINT,VAN::MaterialInstanceID,Interpolation::Flat);
+                sc->AddFunction(mtl::func::HandoverMI);
+            }
+
         sc->CreateShader(last);
 
         last=sc;

src/ShaderGen/ShaderCreateInfoVertex.cpp

@@ -34,8 +34,6 @@ int ShaderCreateInfoVertex::AddInput(const AnsiString &type,const AnsiString &na
 void ShaderCreateInfoVertex::AddMaterialInstanceID()
 {
     AddInput(VAT_UINT,  VAN::MaterialInstanceID,VK_VERTEX_INPUT_RATE_INSTANCE,VertexInputGroup::MaterialInstanceID);
-
-    AddFunction(mtl::func::HandoverMI);
 }
 
 void ShaderCreateInfoVertex::AddJoint()

src/ShaderGen/common/MFCommon.h

@@ -22,8 +22,7 @@ mat4 GetJointMatrix()
             joint.mats[JointID.y]*JointWeight.y+
             joint.mats[JointID.z]*JointWeight.z+
             joint.mats[JointID.w]*JointWeight.w;
-}
+})";
-)";
 
     constexpr const char HandoverMI[]=R"(
 void HandoverMI()